When composition, light, and exposure are all superb, "best" truly is in the eye of the beholder.
当构图、光线及曝光都十分出色时，“最佳”实在是个人有个人的标准。
Welsh artist Michael Bosanko used colored torches and a digital camera with the shutter left open on a long exposure to create the beautiful "light graffiti" photos.
威尔士艺术家麦克博斯安可使用彩色电筒和一台数位相机，利用快门曝光创作了炫彩的“光涂鸦”照片。
A long exposure time captured stars (seen as white flecks in the sky) and the exceptional light in this image.
长时间曝光捕捉到图中的那些星星(空中白色的斑点)和特殊的光。
Part of the trick was to find a suitable photochromic material whose clear and opaque parts would remain stable after the initial exposure to light.
成功实现这一过程的部分关键在于找到合适的光敏材料，其在最初曝光之后透明与不透明区域都应保持稳定。
It has a wide-aperture lens to capture as much light as possible, and the technology requires no clunky auto-focus mechanism. It adjusts exposure time automatically.
它的大光圈镜头可以摄入尽可能大的光量，所用技术并不需要笨重的自动对焦系统，曝光时间也是自动调节。
The front curtain drops away, revealing the sensor behind, and allows the light to enter the camera, beginning the exposure.
前幕帘落下，后方的感光元件露出，光线进入相机，曝光开始。
You will be exposing both the lightning and the foreground and background when you are taking these pictures. The ambient light will determine your exposure time.
在曝光时你要照顾到闪电和前后景，周边的光线会限制你的曝光时间。
You must shoot with an exposure of at least four to 10 seconds to capture the trails of light, and your images will be blurry if the camera is held by hand.
要向捕捉光的轨迹，你必须让相机曝光4到10秒；而如果你把相机放到手上去拍摄的话，你的照片会很模糊。
She suspects there may be a link between humans' increased exposure to light at night and the increase in rates of obesity nationwide.
她怀疑，人们夜晚在灯光下暴露时间的增多与全国肥胖比率的增加可能存在着某种联系。
The problem is, adolescents and teens may have limited exposure to the morning light.
问题是，青少年很少有机会充分地接触到上午的阳光。
Not all melanomas can be prevented, but limiting exposure to strong sunlight and other sources of UV light like tanning beds can significantly reduce the risk of getting this very deadly cancer.
并非所有黑色素瘤患者的病情都能被控制，但减少在强日光或其他紫外线来源(如晒黑床)下暴露皮肤的几率将明显降低获得此致命疾病的可能性。
A long exposure time captured stars in this photo-and the brief balanced light from both a fading moon and a brightening eastern sky.
长时间曝光捕捉到照片中的星星，以及淡出的月亮和明亮的东部天空短暂的平衡光。
To capture droplets in a natural setting requires an understanding of the correct exposure Settings and how to use your surroundings and light to create something compositionally interesting.
捕捉自然情境下的水滴要求懂得适当的曝光设置，了解如何利用环境与光线，营造有趣的构图。
The NWS cautions that its given heat index values assume shady, light wind conditions and that exposure to direct sunlight can increase the heat index by 15 degrees.
国家气象局(NWS)提醒道，它给出的炎热指数值并不可靠，微风条件和暴露于阳光直射下都能增加炎热指数15度。
First, take all of the buildings and put them as close as possible to one another to minimize solar exposure and improve light.
首先，进行建筑布局，让它们尽可能接近，最大程度减少太阳光照射的同时，改善采光。
She has a huge corona of springy, tightly curled hair that suggests prolonged exposure to a light socket, and a personality to match: forthright, disarming, uncensored.
她有着一头弹性十足的浓密细卷发，这或许说明了她长期在电灯下工作（热胀冷缩）； 她的个性正如她的头发一样——直率，温和，不羁；
In theory, you'll gradually get sleepy about 20 minutes earlier each night, and you can facilitate the transition by avoiding extra light exposure from computers or televisions as you near bedtime.
从理论上讲，每天晚上你会比前一天提前20分钟感觉到睡意，为了增强效果，临睡前应该避免电脑、电视等发出的亮光。
After a period determined by the set shutter speed, the rear curtain now drops to close the camera to light and end the exposure.
度过由快门速度设置的曝光时间后，后幕帘落下闭合，曝光停止。
After 72 hours of exposure to ambient light, strands ofnanoparticles twisted and bunched together. Credit: Nicholas Kotov
经过72小时地暴露于环境光下面以后，可把多股纳米粒子扭曲和捆绑在一起。
Office workers with more light exposure at the work place also tended to have better sleep quality, more physical activity and a better quality of life.
在办公地方能接触到更多光的办公室职员也倾向于会有更好的睡眠质量，有更多的体育活动，而且有更好的生活质量。
It involves daily exposure to bright light, for periods between 1 and 4 hours.
它涉及到每天接触到明亮的光，期间1日和4小时。
The first permanent photograph was made in 1826 by Joseph Nicéphore Niépce, building on a discovery by Johann Heinrich Schultz (1724): a silver and chalk mixture darkens under exposure to light.
1724年，约翰·海因里希·舒尔茨发现银和白垩的混合物见光后会变黑。
Stable under ordinary conditions of use and storage. Discolours on exposure to light. Hazardous polymerisation will not occur.
在正常的使用和存放条件下是稳定的。在光线照射下变色。不会产生危险聚合物。
Exposure to the morning sun is best for synchronizing the body’s clock with the Earth’s natural 24-hour cycle of light and dark.
沐浴在晨光中是使生物钟与地球的昼夜同步的最佳方法。
As with the four-letter words, its dirtiness can be cleansed away by exposure to the light, by saying it over and over without apology or embarrassment.
正如其它脏话，暴露于光线之下，一次又一次不带道歉，不感局促说出来，都会清洗肮脏感。
Ms Cheung said more research is needed to determine the mechanisms of action involved in the relationship between light exposure, hunger and metabolism.
张女士表示，光线照射对人体饥饿和新陈代谢关系的原理仍然需要进一步的研究证明。
Curtains should be based on the characteristics of space and light of different exposure situations to choose.
窗帘应根据不同空间的特点及光线照射情况来选择。
Curtains should be based on the characteristics of space and light of different exposure situations to choose.
窗帘应根据不同空间的特点及光线照射情况来选择。
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